This program sustains, maintains, and modernizes the Navy’s afloat and ashore tactical network systems — including Automated Digital Network System (ADNS), Consolidated Afloat Networks and Enterprise Services (CANES), Combined Enterprise Regional Information Exchange System – Maritime (CENTRIXS-M), Communications as a Service (CaaS), Integrated Shipboard Network System (ISNS), Sensitive Compartmented Information (SCI) Networks, Agile Core Services (ACS), Software Defined Networks (SDN), Tactical Afloat Next Generation Networks (TNGN) — ensuring fleet readiness and operational superiority across the global naval enterprise. Master's degree (MS) in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems with 7 years of experience in systems administration, OR b achelor’s degree in Electrical/Electronic/Computer Engineering, Computer Science, or In formation Systems with 12 years professional experience in systems administration.